Reagent disc temperature control method

Abstract

The invention discloses a reagent tray temperature control method, which comprises the following steps of: acquiring the current reagent tray temperature and the environment temperature, and calculating a first update adjusting quantity according to a temperature difference value between the reagent tray temperature and a reagent tray reference temperature and a reagent tray temperature adjusting coefficient, according to the temperature difference value between the current environment temperature and the environment reference temperature and the environment temperature adjusting coefficient, a second updating adjusting quantity is calculated; and adjusting the rotating speed of the cooling fan according to the first update adjusting quantity and the second update adjusting quantity. According to the control method, the environment temperature factor is introduced into reagent refrigeration temperature control, the reagent disc temperature, the refrigerator temperature and the environment temperature form a multi-feedback control mechanism, and the response speed and adaptability of the reagent disc temperature to the environment temperature change can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of in vitro diagnostic equipment, and in particular to a method for controlling the temperature of a reagent disk. Background Art

[0002] Reagent trays in in vitro diagnostic instruments usually need to have a refrigeration function at 2-8°C to ensure the performance of the reagents in the machine. In the existing industry technology, the cooling methods of reagent trays are usually air-cooled and water-cooled. Since water-cooled refrigeration has a better cooling effect, water-cooled refrigerators are commonly used in reagent trays of large in vitro diagnostic instruments.

[0003] When the reagent tray is cooled by a water-cooled refrigerator, the reagent tray is usually a double-layer thin-walled structure, and the reagent tray is provided with a coolant inlet and a coolant outlet, and antifreeze coolant can flow between the thin walls. A water-cooled refrigerator, a circulation pump, and a reagent tray are connected in series with pipelines to form a closed loop, and the antifreeze coolant flows inside the pipelines and components. The water-cooled refrigerator serves as a cold source, and the circulation pump serves as a circulation power source to form a refrigeration cycle system.

[0004] Whether it is an air-cooled refrigerator or a water-cooled refrigerator, it is usually equipped with a cooling plate, a cooling fan and a thermometer. The cooling plate is the cold source, the cooling fan is used to accelerate the heat exchange between the cooling plate and the external environment, and the thermometer is used to feedback the temperature of the water-cooled refrigerator in real time. A thermometer is usually also set on the reagent tray to measure the real-time temperature inside the reagent tray. The temperature of the reagent tray is controlled by the temperature control unit (TCU) so that the refrigerator works within the set temperature range, and then the cooling fan speed is adjusted in real time according to the temperature of the reagent tray, so that the temperature of the reagent tray is within the range of 2 to 8°C and remains relatively stable.

[0005] In practical applications, the ambient temperature affects the dissipation of the reagent tray's cooling capacity and has a significant impact on the reagent tray's temperature response and balance. However, the prior art only controls the reagent tray's temperature based on the reagent tray's temperature and the air cooler / water cooler's temperature, which results in poor response speed and adaptability of the reagent tray's temperature to ambient temperature changes, and is unable to meet the reagent cooling requirements in different environments, such as the reagent tray's temperature being too high in summer and too low in winter, or the reagent tray's temperature dropping rate being too slow in summer. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a method for controlling the temperature of a reagent tray to solve the problem that the reagent tray refrigeration control method in the prior art has poor response speed and adaptability to changes in ambient temperature and cannot meet the reagent refrigeration requirements in different environments.

[0007] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0008] A method for controlling the temperature of a reagent disk, comprising:

[0009] Obtain the current reagent tray temperature Ts, and calculate the first update adjustment amount ΔNs according to the temperature difference |Ts-To| between the currently acquired reagent tray temperature Ts and the reagent tray reference temperature To; wherein the reagent tray reference temperature To is a preset temperature value;

[0010] Obtain the current ambient temperature Te, and calculate the second update adjustment amount ΔNe according to the temperature difference |Te-Toe| between the current ambient temperature Te and the ambient reference temperature Toe; wherein the ambient reference temperature Toe is a preset temperature value;

[0011] The rotation speed of the cooling fan is adjusted according to the first update adjustment amount ΔNs and the second update adjustment amount ΔNe; wherein the cooling fan is used to dissipate heat from a refrigerator, and the refrigerator is used to provide cold energy to the reagent disk.

[0012] Further, the step of calculating the first update adjustment amount ΔNs according to the temperature difference |Ts-To| between the currently acquired reagent disk temperature Ts and the reagent disk reference temperature To includes: calculating the first update adjustment amount ΔNs according to the temperature difference |Ts-To| between the currently acquired reagent disk temperature Ts and the reagent disk reference temperature To and the reagent disk temperature adjustment coefficient Ks; wherein the reagent disk temperature adjustment coefficient Ks is a preset coefficient value;

[0013] The step of calculating the second updated adjustment amount ΔNe according to the temperature difference |Te-Toe| between the current ambient temperature Te and the ambient reference temperature Toe includes: calculating the second updated adjustment amount ΔNe according to the temperature difference |Te-Toe| between the current ambient temperature Te and the ambient reference temperature Toe and the ambient temperature adjustment coefficient Ke, wherein the ambient temperature adjustment coefficient Ke is a preset coefficient value.

[0014] Furthermore, it also includes:

[0015] Obtaining the current temperature Tz of the refrigerator, and determining whether the current temperature Tz of the refrigerator is within a preset operating temperature range of the refrigerator;

[0016] If the current temperature Tz of the refrigerator is greater than the upper limit value of the preset operating temperature range of the refrigerator, the refrigerator is controlled to start; if the current temperature Tz of the refrigerator is less than the lower limit value of the preset operating temperature range of the refrigerator, the refrigerator is controlled to stop.

[0017] Furthermore, it also includes:

[0018] Determine whether the time interval t1-t2 between the current time point t1 and the time point t2 when the environment temperature Te was last obtained is within the environment temperature adjustment interval dt; wherein the environment temperature adjustment interval dt is a preset interval value;

[0019] If the judgment result is no, the step of obtaining the current ambient temperature Te is not performed, and the first updated adjustment amount ΔNs is used as the speed adjustment amount of the cooling fan;

[0020] If the judgment result is yes, the step of obtaining the current ambient temperature Te is performed, and the second update adjustment amount ΔNe is calculated, and the sum of the first update adjustment amount ΔNs and the second update adjustment amount ΔNe is used as the speed adjustment amount of the cooling fan;

[0021] The speed of the cooling fan is updated according to the sum of the speed adjustment amount of the cooling fan and the current speed of the cooling fan.

[0022] By adopting the above technical solution, since the ambient temperature changes relatively slowly, by setting the ambient temperature adjustment interval dt and judging whether the time interval between the current time point and the time point when the ambient temperature Te was last obtained is within the ambient temperature adjustment interval dt, it is determined whether to execute the step of obtaining the current ambient temperature Te, thereby reducing the complexity of the control method and improving the stability and reliability of the control method.

[0023] Furthermore, the step of obtaining the current temperature Tz of the refrigerator and the step of obtaining the current temperature Ts of the reagent disk are both performed in real time.

[0024] Furthermore, the ambient temperature adjustment interval time dt is greater than 5 minutes.

[0025] Furthermore, the difference between the middle value of the preset operating temperature range of the refrigerator and the lower limit value of the refrigerated temperature range required to be maintained by the reagent disk is smaller than the difference between the upper limit value of the refrigerated temperature range required to be maintained by the reagent disk and the middle value of the preset operating temperature range of the refrigerator.

[0026] Furthermore, the refrigerator refrigeration control method and the refrigerator heat dissipation control method are executed under the control of the same control unit.

[0027] Furthermore, the control unit is a TCU chip; the TCU chip controls the power-on start and power-off shutdown of the refrigerator by controlling the on and off of a relay.

[0028] Furthermore, the refrigerator is a water cooler or an air cooler.

[0029] In summary, the reagent disk temperature control method provided by the present invention introduces the ambient temperature factor into the reagent refrigeration temperature control, forms a multi-feedback control mechanism according to the reagent disk temperature, the current temperature of the refrigerator and the ambient temperature, and performs real-time control of the opening and closing of the refrigerator and the speed of the cooling fan, which can improve the response speed and adaptability of the reagent disk temperature to changes in ambient temperature; the control method is simple and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a control principle diagram of the reagent tray refrigeration device in an embodiment of the present invention;

[0032] Figure 2 It is a flow chart of the implementation of the refrigerator refrigeration control method in the reagent tray temperature control method in the embodiment of the present invention;

[0033] Figure 3 The figure is a flow chart for realizing the heat dissipation control method of the refrigerator in the temperature control method of the reagent tray in the embodiment of the present invention.

[0034] Explanation of the reference numerals: 1. Reagent tray; 2. Refrigerator; 3. Cooling fan; 4. TCU chip; 5. Relay. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1 The reagent tray refrigeration device shown includes a reagent tray 1, a refrigerator 2, a cooling fan 3, a TCU chip 4, a relay 5, an ambient temperature sensor, a reagent tray 1 temperature sensor, a refrigerator 2 temperature sensor and other components.

[0039] The reagent disk 1 is a place for refrigerating reagents; the temperature sensor of the reagent disk 1 is used to detect the temperature in the reagent disk 1 in real time, and feed back the detected temperature Ts of the reagent disk 1 to the TCU chip 4.

[0040] The refrigerator 2 is used to provide cold energy to the reagent disk 1. A circulation pipeline for circulating a coolant is provided between the refrigerator 2 and the reagent disk 1. The coolant is cooled at the refrigerator 2 and flows to the reagent disk 1 through the circulation pipeline. The coolant absorbs heat at the reagent disk 1 and flows back to the refrigerator 2 through the circulation pipeline. A circulation pump for driving the coolant to circulate is provided on the circulation pipeline. The coolant circulates between the refrigerator 2 and the reagent disk 1, continuously absorbs the heat of the reagent disk 1, and then transfers it to the refrigerator 2 for release, so that the temperature in the reagent disk 1 is maintained within the required refrigeration temperature range of 2°C to 8°C. The refrigerator 2 can be a water cooler or an air cooler.

[0041] The temperature sensor of refrigerator 2 is used to detect the current temperature Tz of refrigerator 2 in real time, and feed back the detected current temperature Tz of refrigerator 2 to TCU chip 4; TCU chip 4 determines whether the current temperature Tz of refrigerator 2 is within the preset working temperature range of refrigerator 2; when the current temperature Tz of refrigerator 2 is greater than the upper limit value of the preset working temperature range of refrigerator 2, TCU chip 4 controls relay 5 to close so that refrigerator 2 is powered on, and refrigerator 2 starts to cool after being turned on, and the temperature of refrigerator 2 decreases; when the current temperature Tz of refrigerator 2 is less than the lower limit value of the preset working temperature range of refrigerator 2, TCU chip 4 controls relay 5 to disconnect so that refrigerator 2 is powered off and stopped, refrigerator 2 stops cooling, and the temperature of refrigerator 2 increases. Among them, the preset working temperature range of refrigerator 2 is a sub-level of the refrigerated temperature range required to be maintained by reagent disk 1, and the difference between the middle value of the preset working temperature range of refrigerator 2 and the lower limit value of 2°C of the refrigerated temperature range required to be maintained by reagent disk 1 is smaller than the difference between the upper limit value of 8°C of the refrigerated temperature range required to be maintained by reagent disk 1 and the middle value of the preset working temperature range of refrigerator 2. For example, the preset working temperature range of refrigerator 2 is 3°C to 4°C.

[0042] Because refrigerator 2 itself can raise its temperature when absorbing refrigerant heat, radiating fan 3 radiates heat to the refrigerating sheet of refrigerator 2 by forced convection, can reduce the temperature of refrigerating sheet, thereby improve the refrigeration efficiency of refrigerator 2.Environmental temperature sensor is used to detect ambient temperature Te.TCU chip 4 is based on reagent disc 1 temperature Ts, refrigerator 2 current temperature Tz and the multi-feedback control mechanism formed by ambient temperature Te, controls the opening and closing of refrigerator 2 and the rotating speed of radiating fan 3 in real time, can improve the response speed and adaptability of reagent disc 1 temperature to ambient temperature change, can meet the reagent refrigeration requirement under different environments.For example, when the ambient temperature is too high in summer and has a large influence on the temperature of reagent disc 1, can timely improve the rotating speed of radiating fan 3, and then improve the refrigeration efficiency of refrigerator 2, make reagent disc temperature can be timely responded to ambient temperature change, refrigerator 2 can timely provide more cold energy to reagent disc 1 so that the temperature in reagent disc 1 is stably maintained within the required refrigeration temperature range of maintenance.

[0043] like Figure 2 and Figure 3 As shown, the present invention also provides a method for controlling the temperature of a reagent disk, which is applied to the above-mentioned reagent disk refrigeration device; the control method includes a refrigerator refrigeration control method and a refrigerator heat dissipation control method; the refrigerator refrigeration control method and the refrigerator heat dissipation control method are executed simultaneously under the control of the same control unit.

[0044] like Figure 2 As shown, the refrigeration control method of the refrigerator includes the following steps:

[0045] Step A1, obtaining the current temperature Tz of the refrigerator in real time;

[0046] Step A2, determining whether the current temperature Tz of the refrigerator is within the preset operating temperature range of the refrigerator;

[0047] Step A3: If the current temperature Tz of the refrigerator is greater than the upper limit of the preset operating temperature range of the refrigerator, control the refrigerator to start;

[0048] Step A4: If the current temperature Tz of the refrigerator is less than the lower limit of the preset operating temperature range of the refrigerator, control the refrigerator to stop.

[0049] Among them, the preset operating temperature range of the refrigerator is a sub-level of the refrigerated temperature range required to be maintained by the reagent disk, and the difference between the middle value of the preset operating temperature range of the refrigerator and the lower limit value of the refrigerated temperature range required to be maintained by the reagent disk is less than the difference between the upper limit value of the refrigerated temperature range required to be maintained by the reagent disk and the middle value of the preset operating temperature range of the refrigerator. For example, when the refrigerated temperature range required to be maintained by the reagent disk is 2°C to 8°C, the upper limit value of the refrigerated temperature range required to be maintained by the reagent disk is 8°C, and the lower limit value of the refrigerated temperature range required to be maintained by the reagent disk is 2°C; at this time, the preset operating temperature range of the refrigerator can be set to 3°C to 4°C, the middle value of the preset operating temperature range of the refrigerator is 3.5°C, and the difference between the middle value 3.5°C and the lower limit value 2°C, which is 1.5°C, is less than the difference between the middle value 3.5°C and the upper limit value 8°C, which is 4.5°C.

[0050] This refrigerator refrigeration control method is as follows: when the current temperature Tz of the refrigerator is greater than the upper limit value of the preset working temperature range of the refrigerator, the refrigerator starts to refrigerate after being turned on, the temperature of the refrigerator itself decreases, and the refrigerator can provide cold energy for the reagent disk to reduce the temperature of the reagent disk; when the current temperature Tz of the refrigerator is less than the lower limit value of the preset working temperature range of the refrigerator, the refrigerator is powered off and stopped, the refrigerator stops refrigerating, and the temperature of the refrigerator increases after the higher temperature refrigerant in the reagent disk flows to the refrigerator; in this way, automatic control of the refrigeration process of the refrigerator can be achieved, and the temperature of the reagent disk is not consistently too high or too low, so that the temperature in the reagent disk can be kept in the required refrigeration temperature range for a long time.

[0051] like Figure 3 The refrigerator heat dissipation control method shown includes the following steps:

[0052] Step B1, obtaining the current reagent disk temperature Ts in real time, and using the temperature difference value |Ts-To| between the currently obtained reagent disk temperature Ts and the reagent disk reference temperature To;

[0053] Step B2, calculating the first update adjustment amount ΔNs according to the temperature difference |Ts-To| and the reagent disk temperature adjustment coefficient Ks, ΔNs=|Ts-To|*Ks; wherein the reagent disk reference temperature To is a preset temperature value, and the reagent disk temperature adjustment coefficient Ks is a preset coefficient value;

[0054] Step B3, judging whether the ambient temperature adjustment interval time dt has been reached; specifically, judging whether the ambient temperature adjustment interval time dt has been reached according to the time interval t1-t2 between the current time point t1 and the time point t2 when the ambient temperature Te was last obtained and the size of the ambient temperature adjustment interval time dt;

[0055] Step B4: if the judgment result is no, taking the first updated adjustment amount ΔNs as the speed adjustment amount of the cooling fan;

[0056] Step B5, if the judgment result is yes, then obtain the current ambient temperature Te, and calculate the temperature difference |Te-Toe| between the current ambient temperature Te and the ambient reference temperature Toe;

[0057] Step B6, calculating the second updated adjustment amount ΔNe according to the temperature difference |Te-Toe| and the ambient temperature adjustment coefficient Ke, ΔNe=|Te-Toe|*Ke; wherein the ambient reference temperature Toe is a preset temperature value, and the ambient temperature adjustment coefficient Ke is a preset coefficient value;

[0058] Step B7, taking the sum of the first updated adjustment amount ΔNs and the second updated adjustment amount ΔNe as the speed adjustment amount of the cooling fan;

[0059] Step B8, adjusting the speed of the cooling fan according to the speed adjustment amount of the cooling fan; that is, updating the speed of the cooling fan according to the sum of the speed adjustment amount of the cooling fan and the current speed of the cooling fan.

[0060] Among them, when the judgment result is no, step B4 is executed, and steps B5 and S6 are not executed. The speed of the cooling fan after speed adjustment is No+ΔNs; when the judgment result is yes, steps B5 and S6 are executed, and the speed of the cooling fan after speed adjustment is No+ΔNs+ΔNe; No is the current speed of the cooling fan before speed adjustment. The speed of the cooling fan in the heat dissipation control method can be determined by an algorithm based on the temperature of the reagent disk and the ambient temperature, or the relationship between the cooling fan speed and the temperature of the reagent disk and the ambient temperature can be obtained by experimental verification, and the table can be directly looked up when the control program is running.

[0061] In some embodiments, the step of obtaining the current temperature Tz of the refrigerator and the step of obtaining the current reagent disk temperature Ts are both performed in real time; the ambient temperature adjustment interval dt can be set to an interval of 5 minutes or longer. Since the ambient temperature changes relatively slowly, by setting the ambient temperature adjustment interval dt, and judging whether the time interval between the time point of obtaining the reagent disk temperature Ts and the time point of obtaining the ambient temperature Te last time is within the ambient temperature adjustment interval dt, it is determined whether to perform the step of obtaining the current ambient temperature Te, which can reduce the complexity of the refrigerator heat dissipation control method and improve the stability and reliability of the control method.

[0062] In some embodiments, the specific value of the ambient temperature adjustment interval time dt can be manually adjusted, for example, in seasons with large day and night temperature differences or in areas with large instantaneous temperature differences, the ambient temperature adjustment interval time dt is adjusted to a relatively small value, and in seasons with small day and night temperature differences or in areas with small instantaneous temperature differences, the ambient temperature adjustment interval time dt is adjusted to a larger value. Such a setting can be adapted to local conditions and time, further reducing the complexity of the refrigerator heat dissipation control method and improving the stability and reliability of the control method.

[0063] In summary, the control method of the reagent tray temperature provided by the embodiment of the present invention, according to the multi-feedback control mechanism formed by the reagent tray temperature Ts, the current temperature Tz of the refrigerator and the ambient temperature Te, the opening and closing of the refrigerator and the speed of the heat dissipation fan are controlled in real time, which can improve the response speed and adaptability of the reagent tray temperature to the ambient temperature change, and meet the reagent refrigeration requirements under different environments. For example, in summer, when the ambient temperature is too high and has a greater impact on the temperature of the reagent tray, the refrigeration efficiency of the refrigerator can be improved by timely increasing the speed of the heat dissipation fan, so that the reagent refrigeration device can respond to the ambient temperature change in time, and the refrigerator can provide more cold energy to the reagent tray in time so that the temperature in the reagent tray is stably and quickly maintained within the required refrigeration temperature range; when the ambient temperature rises rapidly in summer, the problem of too slow cooling speed of the reagent tray can be prevented; when the ambient temperature is low for a long time in winter, the energy waste caused by the long-term startup of the refrigerator and the temperature in the reagent tray being lower than the minimum value of the refrigeration temperature range or even the reagent tray freezing and other unfavorable phenomena can be prevented.

[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A method for controlling the temperature of a reagent disk, comprising: Obtain the current reagent tray temperature Ts, and calculate the first update adjustment amount ΔNs according to the temperature difference |Ts-To| between the currently acquired reagent tray temperature Ts and the reagent tray reference temperature To; wherein the reagent tray reference temperature To is a preset temperature value; Obtain the current ambient temperature Te, and calculate the second update adjustment amount ΔNe according to the temperature difference |Te-Toe| between the current ambient temperature Te and the ambient reference temperature Toe; wherein the ambient reference temperature Toe is a preset temperature value; The rotation speed of the cooling fan is adjusted according to the first update adjustment amount ΔNs and the second update adjustment amount ΔNe; wherein the cooling fan is used to dissipate heat from a refrigerator, and the refrigerator is used to provide cold energy to the reagent disk.

2. The method for controlling the temperature of the reagent disk according to claim 1, characterized in that: The step of calculating the first update adjustment amount ΔNs according to the temperature difference value |Ts-To| between the currently acquired reagent disc temperature Ts and the reagent disc reference temperature To comprises: calculating the first update adjustment amount ΔNs according to the temperature difference value |Ts-To| between the currently acquired reagent disc temperature Ts and the reagent disc reference temperature To and the reagent disc temperature adjustment coefficient Ks; wherein the reagent disc temperature adjustment coefficient Ks is a preset coefficient value; The step of calculating the second updated adjustment amount ΔNe according to the temperature difference |Te-Toe| between the current ambient temperature Te and the ambient reference temperature Toe includes: calculating the second updated adjustment amount ΔNe according to the temperature difference |Te-Toe| between the current ambient temperature Te and the ambient reference temperature Toe and the ambient temperature adjustment coefficient Ke, wherein the ambient temperature adjustment coefficient Ke is a preset coefficient value.

3. The method for controlling the temperature of the reagent disk according to claim 1, characterized in that: Also includes: Obtaining the current temperature Tz of the refrigerator, and determining whether the current temperature Tz of the refrigerator is within a preset operating temperature range of the refrigerator; If the current temperature Tz of the refrigerator is greater than the upper limit value of the preset operating temperature range of the refrigerator, the refrigerator is controlled to start; if the current temperature Tz of the refrigerator is less than the lower limit value of the preset operating temperature range of the refrigerator, the refrigerator is controlled to stop.

4. The method for controlling the temperature of the reagent disk according to claim 3, characterized in that: Also includes: Determine whether the time interval t1-t2 between the current time point t1 and the time point t2 when the environment temperature Te was last obtained is within the environment temperature adjustment interval dt; wherein the environment temperature adjustment interval dt is a preset interval value; If the judgment result is no, the step of obtaining the current ambient temperature Te is not performed, and the first updated adjustment amount ΔNs is used as the speed adjustment amount of the cooling fan; If the judgment result is yes, the step of obtaining the current ambient temperature Te is performed, and the second update adjustment amount ΔNe is calculated, and the sum of the first update adjustment amount ΔNs and the second update adjustment amount ΔNe is used as the speed adjustment amount of the cooling fan; The speed of the cooling fan is updated according to the sum of the speed adjustment amount of the cooling fan and the current speed of the cooling fan.

5. The method for controlling the temperature of the reagent disk according to claim 3, characterized in that: The step of obtaining the current temperature Tz of the refrigerator and the step of obtaining the current temperature Ts of the reagent disk are both performed in real time.

6. The method for controlling the temperature of the reagent disk according to claim 4, characterized in that: The ambient temperature adjustment interval time dt is greater than 5 minutes.

7. The method for controlling the temperature of the reagent disk according to claim 3, characterized in that: The difference between the middle value of the preset working temperature range of the refrigerator and the lower limit value of the refrigerated temperature range required to be maintained by the reagent disk is smaller than the difference between the upper limit value of the refrigerated temperature range required to be maintained by the reagent disk and the middle value of the preset working temperature range of the refrigerator.

8. The method for controlling the temperature of a reagent disk according to claim 1, characterized in that: The refrigerator refrigeration control method and the refrigerator heat dissipation control method are executed under the control of the same control unit.

9. The method for controlling the temperature of the reagent disk according to claim 8, characterized in that: The control unit is a TCU chip; the TCU chip controls the power-on start and power-off shutdown of the refrigerator by controlling the on and off of a relay.

10. The control method of the reagent refrigeration device according to claim 1, characterized in that: The refrigerator is a water cooler or an air cooler.

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